Since 1996 APP produces hot gas generators that are applied in a dust explosion suppression system. Our customer StuvEx is able to detect a dust explosion in embryonic stage. Further expansion of the starting explosion can be prevented by an extremely fast discharge of an extinguishing powder. The pressure required to achieve this velocity is provided by a so-called fast gas generator. The fast gas generator is an unpressurized system that is able to pressurize the dust explosion suppression system in just a few milliseconds after activation.